An ERCP involves inserting an endoscope through the mouth and stomach into the duodenum, then inserting a thin tube through the endoscope into the biliary tract to inject radiopaque dye and take x-rays of the biliary tract and pancreatic duct. ERCPs are used diagnostically to detect conditions like gallstones and cancer, and therapeutically to remove stones or lesions or repair narrowings of the biliary ducts. Patients must not eat or drink for 8-10 hours before the procedure, which uses an endoscope, oral anesthetic, contrast media, films, and may use a C-arm to take preliminary, procedure, and post-procedure images centered at the iliac crest on

1. Endoscopic retrograde Cholangiopancreatography(ERCP) An examination of the biliary structures.

2. What is an ERCP? An ERCP involves passing an endoscope through the mouth, esophagus, and stomach into the duodenum. A thin tube is then inserted through the endoscope into the biliary tract. A radiopaque dye is injected through the tube, and x-rays are taken of the biliary tract and pancreatic duct.

3. Why would someone need an ERCP? For diagnostic reasons: To diagnose biliary and pancreatic pathologic conditions including gall stones and cancer To remove any stones or lesions To repair any narrowing of the biliary ducts (stenosis)

4. What does a patient have to do before an ERCP exam? Nothing can be taken by mouth 8-10 hours before exam. This means no eating, drinking, gum chewing or smoking The examination can last anywhere from 30 minutes to 2 hours

5. What supplies are needed for an ERCP? An endoscope An oral anesthetic Contrast media Films to take preliminary and post-procedure images A C-arm may be used to take these images It is the radiographers responsibility to take images and to assist the radiologist or gastroenterologist

6. Routine Radiographic Projections for an ERCP Preliminary KUB Spot Films KUB Post procedure KUB Drainage Film KUB All films on a 14x17 cassette Center at the iliac crest